1. Carrus, P., Fox, P., Haas, F., and Kopal, Z.: 1951,Astrophys. J. 125, 495.
2. Ryazanov, E. V.: 1959,Soviet Phys. Dokl. SSSR 4, 537.
3. Sedov, L. I.: 1959,Similarity and Dimensional Methods in Mechanics, Academic Press, New York.
4. Singh, J. B.: 1982,Astrophys. Space Sci. 87, 347.
5. Whitham, G. B.: 1958,J. Fluid Mech. 4, 337.